Pull rod with replacement mechanism

Abstract

The utility model discloses a pull rod with a replacement mechanism, and relates to the technical field of pull rods, the pull rod comprises a replaceable pull rod, the bottom end of the replaceable pull rod is provided with a threaded groove, a threaded rod is in butt joint in the threaded groove, the threaded rod is fixed at the top of a limiting sliding block, and rod grooves are formed in the two sides of the limiting sliding block. A spring and a positioning lock rod are arranged in the rod groove, the limiting sliding block is located in the limiting sliding groove, the limiting sliding groove is formed in the pull rod sliding rail, a lock groove is formed in the top end of the side wall of the replaceable pull rod, a sliding lock rod is inserted into the lock groove, and the sliding lock rod penetrates through the interior of the handle rod. Through the arrangement of the replaceable pull rod, when the pull rod is deformed and damaged and cannot be used in the use process of the luggage, the pull rod can be quickly disassembled for replacement operation, so that the service life of the luggage is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pull rods, in particular to a pull rod with a replacement mechanism. Background Art

[0002] At present, luggage trolleys are an important part of luggage, which is convenient for dragging luggage and plays an important role in improving the portability of luggage. In the use of traditional trolleys, the trolleys are generally placed inside the box. When the trolleys are used, they are easily deformed by external forces. When the trolleys are deformed, they cannot be retracted. In addition, the overall installation method of the trolleys makes the trolleys unusable.

[0003] Chinese authorized patent 201220438918.0 discloses a luggage drawbar. When the drawbar is deformed due to external force during use, the deformation of the drawbar cannot be quickly resolved, causing the entire luggage to be unable to be used normally. Moreover, as an overall design, it is not conducive to replacing the drawbar to solve the above-mentioned problems. Therefore, we propose a drawbar with a replacement mechanism. Utility Model Content

[0004] In view of the above-mentioned problems existing in the existing pull rod with a replacement mechanism, the present utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a pull rod with a replacement mechanism. By setting up a replaceable pull rod, when the pull rod is deformed, damaged and cannot be used during the use of the luggage, the pull rod can be quickly disassembled and replaced, which greatly improves the service life of the luggage and solves the problem of the pull rod with a replacement mechanism.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pull rod with a replacement mechanism includes a replaceable pull rod, characterized in that a threaded groove is provided at the bottom end of the replaceable pull rod, and a threaded rod is connected to the threaded groove, the threaded rod is fixed to the top of a limit slider, rod grooves are provided on both sides of the limit slider, a spring and a positioning locking rod are built into the rod groove, the limit slider is located inside the limit sliding groove, and the limit sliding groove is provided inside the pull rod slide rail, a locking groove is provided at the top end of the side wall of the replaceable pull rod, a sliding locking rod is inserted into the locking groove, and the sliding locking rod passes through the inside of the handle rod.

[0008] A pull hole is provided on the outer wall of the sliding lock rod, a magnet is fixed to the end of the sliding lock rod, the magnet is magnetically connected to the replaceable pull rod, and the sliding lock rod and the handle rod form a sliding mechanism, which is conducive to quickly controlling the docking and disassembly effect of the handle rod and the replaceable pull rod.

[0009] Preferably, the thread size of the threaded rod is matched with the thread size of the threaded groove, and the threaded rod and the threaded groove constitute a rotating mechanism, which is conducive to the installation and removal effect of the bottom end of the replaceable pull rod for quick disassembly.

[0010] Preferably, one end of the spring is fixed inside the rod groove, and the other end of the spring is fixedly docked with the inner wall of the positioning lock rod. The positioning lock rod is adapted to the size of the rod groove and plugs into a sliding mechanism. The spring will give the positioning lock rod elasticity, and the positioning lock rod will facilitate the pressure-locking docking with the positioning lock hole.

[0011] Preferably, positioning lock holes are provided on both sides of the inner wall of the limiting slide groove, and the positioning lock holes are evenly distributed in multiple groups. The end of the positioning lock rod and the positioning lock hole are both arc-shaped, and the end of the positioning lock rod is inserted into the interior of the positioning lock hole, which is beneficial to the sliding docking of the positioning lock rod and the positioning lock hole, and conveniently controls the use height of the replaceable pull rod.

[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0013] 1. The utility model provides a replaceable pull rod. When the pull rod is deformed, damaged and cannot be used during the use of the luggage, the pull rod can be quickly disassembled for replacement, which greatly improves the service life of the luggage.

[0014] 2. The utility model is provided with positioning locking rods on both sides of the limit sliding block. The positioning locking rods are affected by the elastic force of the springs, which will help drive the positioning locking rods and the positioning locking holes to form an automatic docking and limiting effect, thereby facilitating the rapid limit adjustment of the replaceable pull rod during the lifting process, and facilitating the control of the replaceable pull rod to be locked at the position where it needs to be used. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the replaceable pull rod structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the handlebar structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the limit slider of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the joint between the limiting sliding block and the limiting sliding rail of the utility model.

[0021] Description of reference numerals:

[0022] 1. Replaceable pull rod; 2. Locking groove; 3. Handle rod; 4. Sliding locking rod; 5. Threaded groove; 6. Threaded rod; 7. Limiting slider; 8. Positioning locking rod; 9. Pull hole; 10. Magnet; 11. Rod groove; 12. Spring; 13. Pull rod slide rail; 14. Limiting slide groove; 15. Positioning locking hole. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] The utility model embodiment discloses a pull rod with a replacement mechanism.

[0025] The utility model provides Figure 1-5 The pull rod with a replacement mechanism shown in the figure includes a replaceable pull rod 1, a threaded groove 5 is opened at the bottom end of the replaceable pull rod 1, and a threaded rod 6 is connected in the threaded groove 5, and the threaded rod 6 is fixed to the top of the limit slider 7, and rod grooves 11 are opened on both sides of the limit slider 7, and a spring 12 and a positioning locking rod 8 are built in the rod groove 11, and the limit slider 7 is located inside the limit slide groove 14, and the limit slide groove 14 is opened in the pull rod slide rail 13, and a locking groove 2 is opened at the top of the side wall of the replaceable pull rod, and a sliding locking rod 4 is inserted in the locking groove 2, and the sliding locking rod 4 runs through the handle rod 3. By setting up the replaceable pull rod, when the pull rod is deformed and damaged and cannot be used during the use of the luggage, the pull rod can be quickly disassembled for replacement operation, which greatly improves the service life of the luggage.

[0026] To quickly install the handlebar: Figure 1 and Figure 3 As shown, a pull hole 9 is opened on the outer wall of the sliding lock rod 4, and a magnet 10 is fixed to the end of the sliding lock rod 4. The magnet 10 is magnetically connected to the replaceable pull rod 1. The sliding lock rod 4 and the handle rod 3 constitute a sliding mechanism. The sliding lock rod 4 and the handle rod 3 are slidably docked. When the sliding lock rod 4 is docked with the replaceable pull rod 1, the handle rod 3 can be driven to quickly dock with the replaceable pull rod 1, and the magnet 10 will adsorb the connection to complete the rapid locking and disassembly effect.

[0027] To quickly remove the replaceable tie rod: Figure 1 and Figure 2As shown, the thread size of the threaded rod 6 is matched with the thread size of the threaded groove 5, and the threaded rod 6 and the threaded groove 5 form a rotating mechanism. The threaded rod 6 and the threaded groove 5 are rotatably connected, and the replaceable pull rod 1 can be disassembled and replaced when the replaceable pull rod 1 is rotated.

[0028] In order to automatically control the adjustment of the position of the replaceable tie rod: Figure 4 As shown, one end of the spring 12 is fixed inside the rod groove 11, and the other end of the spring 12 is fixedly docked with the inner wall of the positioning lock rod 8. The positioning lock rod 8 is adapted to the size of the rod groove 11 and forms a sliding mechanism. The spring 12 will give the positioning lock rod 8 elasticity, which is conducive to the automatic sliding docking between the positioning lock rod 8 and the positioning lock hole 15.

[0029] In order to quickly define the use position of the replaceable tie rod: Figure 5 As shown, positioning lock holes 15 are provided on both sides of the inner wall of the limiting slide groove 14, and the positioning lock holes 15 are evenly distributed in multiple groups. The end of the positioning lock rod 8 and the positioning lock hole 15 are both arc-shaped, and the end of the positioning lock rod 8 is inserted into the interior of the positioning lock hole 15. During the force-bearing process, the positioning lock rod 8 will automatically enter and leave the positioning lock hole 15 at the corresponding position. The positioning lock rod 8 can quickly limit the position of the replaceable pull rod 1.

[0030] When working, the pull rod slide rail 13 is installed on the luggage, and the two sets of pull rod slide rails 13 are fixedly installed. During normal use, force is applied to the handle bar 3, and the handle bar 3 will drive the replaceable pull rod 1 to rise and fall, and the replaceable pull rod 1 will drive the limit slider 7 to slide inside the limit slide groove 14. During the sliding process, the positioning lock rod 8 is subjected to the elastic force of the spring 12, which will give the positioning lock rod 8 elasticity, and the actual positioning lock rod 8 is retracted based on the rod groove 11. When it reaches the use position, the positioning lock rod 8 will automatically enter the positioning lock hole 15 at the matching position to complete the position limitation. When the replaceable pull rod 1 is damaged and needs to be replaced When replacing, first pull the pull hole 9 to retract the sliding lock rod 4 into the interior of the handle rod 3. At the same time, the sliding lock rod 4 is separated from the lock groove 2, and the sliding lock rod 4 is magnetically connected to the replaceable pull rod 1 through the magnet 10, which is conducive to the rapid separation and disassembly of the sliding lock rod 4. Rotate the replaceable pull rod 1, and the threaded groove 5 at the bottom end of the replaceable pull rod 1 is rotated and separated from the threaded rod 6 at the top of the limiting slider 7. At this time, it will be convenient to quickly disassemble the replaceable pull rod 1, completing the disassembly and replacement effect of the replaceable pull rod 1. According to the above working principle, a new replaceable pull rod 1 is taken out for replacement, which greatly improves the convenience during use. The design is simple and more practical.

[0031] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the present utility model, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection;

[0033] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pull rod with a replacement mechanism, comprising a replaceable pull rod (1), characterized in that: The bottom end of the replaceable pull rod (1) is provided with a threaded groove (5), and a threaded rod (6) is connected to the threaded groove (5), and the threaded rod (6) is fixed to the top of the limit slider (7). Both sides of the limit slider (7) begin to have rod grooves (11), and the rod grooves (11) are equipped with springs (12) and positioning lock rods (8). The limit slider (7) is located inside the limit slide groove (14), and the limit slide groove (14) is opened inside the pull rod slide rail (13). The top end of the side wall of the replaceable pull rod is provided with a lock groove (2), and a sliding lock rod (4) is inserted into the lock groove (2), and the sliding lock rod (4) runs through the inside of the handle rod (3).

2. A pull rod with a replacement mechanism according to claim 1, characterized in that: The outer wall of the sliding lock rod (4) is provided with a pull hole (9), the end of the sliding lock rod (4) is fixed with a magnet (10), the magnet (10) is magnetically connected to the replaceable pull rod (1), and the sliding lock rod (4) and the handle rod (3) form a sliding mechanism.

3. A pull rod with a replacement mechanism according to claim 1, characterized in that: The thread size of the threaded rod (6) matches the thread size of the threaded groove (5), and the threaded rod (6) and the threaded groove (5) form a rotating mechanism.

4. A pull rod with a replacement mechanism according to claim 1, characterized in that: One end of the spring (12) is fixed inside the rod groove (11), and the other end of the spring (12) is fixedly connected to the inner wall of the positioning lock rod (8). The positioning lock rod (8) and the rod groove (11) are adapted to each other in size and are plugged in to form a sliding mechanism.

5. The pull rod with a replacement mechanism according to claim 1, characterized in that: Both sides of the inner wall of the limiting slide groove (14) are provided with positioning lock holes (15), and the positioning lock holes (15) are evenly distributed in a plurality of groups. The end of the positioning lock rod (8) and the positioning lock hole (15) are both arc-shaped, and the end of the positioning lock rod (8) is inserted into the interior of the positioning lock hole (15).

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